The Academy Award winning actress, 48, has battled an addiction to drugs for most of her adult life. Her younger brother, Redmond, is also currently in rehab, in Southern California for an addiction to heroin. The siblings are not in the same facility.

“Tatum is doing really, really bad at the facility she is at. Tatum isn’t at a 12 step based treatment program, and that is a huge problem because someone with Tatum’s addiction needs to be at a rehab facility like Betty Ford or Cirque Lodge which adhere to the 12 step model,” the source says. “Tatum is essentially in denial about how bad her addiction is. Tatum is refusing to embrace the 12 step AA model to get sober.”

In contrast, her brother Redmond is in a very strict facility that offers intensive treatment based on the 12 step AA model.